/system resource usb print value-list 
           device: 1-0                  2-0                  2-1                     2-1.1       2-1.1.1           2-1.4
           vendor: Linux 3.3.5 ehci_hcd Linux 3.3.5 ohci_hcd VIA Labs, Inc.                      HUAWEI Technology HUAWEI Technology
             name: Tile-Gx EHCI         Tile-Gx OHCI         USB2.0 Hub              USB 2.0 Hub HUAWEI Mobile     HUAWEI Mobile
    serial-number: tilegx-ehci.0        tilegx-ohci.0                                                              
        vendor-id: 0x1d6b               0x1d6b               0x2109                  0x1a40      0x12d1            0x12d1
        device-id: 0x0002               0x0001               0x2812                  0x0101      0x1001            0x14db
            speed: 480                  12                   12                      12          12                12
            ports: 1                    1                    4                       4                             
      usb-version:  2.00                 1.10                 2.10                    2.00        2.00              2.00